Transmission



Aprilzz, 1930. LQMARTINSEN 1,755,186

TRANSMISSION Filed Jan. 3l, 1950 INVENTOR. Zamba/:'66 /Vd/izz/Sew.

Patented 22'19370 o 'TRANslviissIoiTQ y l I The invention relates to i governor con- 1 trolled yfriction differentials, particularly f adapted for vuse in connection with motor-vehicles, and in connectionwith'the 'mechanism shown. in myPatent.`:/inl,707,635, and hasv for A, its object `to provide 'ia friction dierentialy constructed in a- `manner whereby variouslspeeds can beoobtainedfby controlling the speed of rotation vof the propeller kor drive shaft. f f

1 A `further object isto eXtendLthe` adjacentV l* Vends ofthe wheel drive shaft into a rotatable bearing sleeve, fan-d to provide friction gear connections between the adjacent ends vof lthe wheel drive shaftsinstead ofA toothed gear connections, andl to mount the large frictionv i disc on'the sleeveinfafmanner wherebythe governor controlled friction drive wheel may 2o, l A further Objectis to mount.r the friction moveJ towards and away from the axis of the friction disc.

f drive wheel on a sleeve slidablykeyed on the Y propeller shaft'and to provide opposite sides'- of the propeller shaft with racks with which gear segments carried by .the vvsleeve mesh. Also to provide governorvmeans in connection with thegear. segments, whereby upon inf ycreasing or diminishing lthe speed of rotation of the propellergshaft, the speed of rotation of thedrive disc will .be variedf With theabove rand other objects in view the invention residesin the combination and arrangementof parts as 'hereinafterv set forth, shown in the drawing, described'and claimed,

"'z it being understood that changes in the precise embodiment of theinvention may be made within thev scopeoflwh'at is claimed without departing lfrom therfspiritfof the invention,`

In the drawing:

Figure 1 is fa through the differential. f

Figure'v 2.is a vertical longitudinal-seca tional View through the dierential.y

Referringl tothe drawing the numeral 1V designates the drive shaft o f the yvehicle which extendsV rearwardly through thel casing 2 and is antifrictionally mounted at 3. Thel rear-end ofthe drive shaft 1 jhas'its` opposite sides provided with'raclrs'lla with which the gear segments 5 Vof the governors mesh, vThe .rotated.v4

horizontal ysectional view v weighted endsl() ofthe1govern'orpivotally gear segments. arepivotally mounted'fiat tween ears =7 1c a'irried'by the longitudinally willbe'f seenathat vwhen"thef vveightedQendsfl-O of' the gear segments 4are forced outwardly under centriffirgalforce, thejs'lieeveS will move Vl'ongitudin''al-ly "for Vinoving'fthe friction wdrive Whellla i f' l f' ffl 'Disposed withinj the .differential housing any alinea-driven shaftsiafwleh Q leali"towheelslrof-conventional construction. i

12, are

'movable 'sleeve v8, 5 and; l as the? gear :segments iextend throughjffsl'ots 9- the sleeve 8, A it ofthesleeve 16th-as secured thereto ubyffmean's of :bolt-,S191 afd'ri-ven dise'f20, ywgvi-th which-'the friction drive #wheel 11 engages( "It 'willfbe' vseen"that during-the 'rot-ation offthe driven 'shaft' kwith -theifri-ction drive 'wheelE 11' linien-Y 'fdisc20,f 20 l*will "be sies-ve -11 s., fs greatly-mounten on the @inve shaft `but 4:is rotatable ltherewithE"iiic'id'ent ltofthe"key 21. The `friction'fd-rive wheelll lfincreases, the centrifugal actionfofi v.the

moves the gear .segments 5, andfas said v'gear' segments arepivotally mounted yon the sleeve 8, said sleeve and the frictiondrive wheellll.' are lmoved inwardly towards the aXis of the driven disc 20 for increasing the speed of the are provided connecting the sleeve Sand the adj acent portions of the segments, and which Y .springs form 'means for insuring' a positive Vvis stationary ialdjacent ithe outerfksidefofthe friction-drive disc-,20, -vvh'enthe.shaft -1.lis"a1t Y y resaltan-d asfthe speed of A'rotation ofthe 4shaft driven shafts 13. Compressible springs 22,y y

action of the governors and return of the sleeve to normal position when speed is reduced.

Dierential housing 12 is preferably formed in sections for allowing theparts to be assembled therein, however applicant does not limit himself in this particular. EX-

tending upwardly within the differential v4 housing l2 is a bracket 23 for supportingthe inner end of the drive shaft 1.

From the above it will be seenthat a friction governor control differential is provided, p

which is particularly adapted for use incon-l ne'ction with motor driven vehicles, however, applicable for general use.

The invention having been set forth what is claimed as new and useful is z- Y l l. A diiferentialzcomprising axially alined driven shafts, rear train connections between cV c l the adjacent endsof the driven shafts, an

antifrictionally mounted bearing sleeveV sup- .Y lporting said gear connections, Va friction drive disccarried by said sleeve, a drive friction wheel engaging said disc, a drive shaft,

za; sleeve carried by said drive wheel, said sleeveV beinglongitn'dinally; feathered on the drive shaft, centrifugally controlled gear segments carried bythe sleeve, racks carried by opposite sides ofthe drive shaft with which the gear segments mesh. j f Y 2. The combination with a differential mechanism having a driven disc',- of means for driving saidY disc, said means comprising :a drive shaft ata right angle to the aXis of the driven disc, a sleeve slidably keyed on the `drivershaft, a friction wheel carried by said sleeve, said friction wheel having its periphery in engagement with the driven disc, gear segments pivotally mounted on the sleeve at opposite sides thereof, racks on opposite sides of the drive'shaft, said gearsegments eX- n tending through slots .in the sleeve,weights carried by said gear segmentsat one side thereof forpivotally movingvthe gear segments under centrifugal force andsprings cooperating with the gear segments for rei Vturning the same to normal position upon stopping of the drive shaft.

'3. The combination withV fa diiferential comprising adjacent' driven shaft ends hav- Y ing friction bevel gear drive connections, a 4 v rotatablesleeve supportingsaid drive conf nection,a `driven disc carried by said sleeve,

of a governorcontrol drive wheel, engaging i the drive disc. Y Y Y K 'In 'testimony fwhereof he hereunto axes his signature. Y i; LEONARD G. VlvlArR'llNSEN.V 

